Holley EFI 300-227BK - Hi-Ram Lower Manifold - GM LS1/LS2/LS6

Holley EFI 300-227BK - Hi-Ram Lower Manifold - GM LS1/LS2/LS6

Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6

LS1/LS2/LS6 Cathedral Port EFI Base Only - Black

The Holley GM LS1/LS2/LS6 Modular Hi-Ram Intake Manifold is introduced as an alternative to fabricated sheet-metal for high-performance applications where induction system height is not limited. Coupling this Hi-Ram intake with the high flowing LS1/LS2/LS6 style cylinder heads has outstanding potential for N/A and forced induction applications at a budget-minded cost. Aggressive, bold, race-bred styling will make bad intentions clear for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, street-rod applications and more.

• Plenum Top Gasket Type - 3/32” Round O-ring Cord
• Runner Length - 6.58” As-Cast Runner Cross-Sectional Area - Tapered 4.25 in² to 2.53 in²
• Mounting Flange Gasket Type - Standard LS3 Molded O-ring
• Port Size - 2.49” H x 1.21” W
• Black color